linux-kernel - [PATCH] SCSI: use kobj_to

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Date:   Tue, 25 Feb 2020 18:04:11 +0800
From:   guosongsu@...il.com
To:     "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Guosong Su <suguosong@...omi.com>
Subject: [PATCH] SCSI: use kobj_to_dev

From: Guosong Su <suguosong@...omi.com>

Use kobj_to_dev to instead of open-coding it.

Signed-off-by: Guosong Su <suguosong@...omi.com>
---
 drivers/scsi/scsi_sysfs.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 677b5c5403d2..c3a30ba4ae08 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -856,7 +856,7 @@ show_vpd_##_page(struct file *filp, struct kobject *kobj,	\
 		 struct bin_attribute *bin_attr,			\
 		 char *buf, loff_t off, size_t count)			\
 {									\
-	struct device *dev = container_of(kobj, struct device, kobj);	\
+	struct device *dev = kobj_to_dev(kobj);				\
 	struct scsi_device *sdev = to_scsi_device(dev);			\
 	struct scsi_vpd *vpd_page;					\
 	int ret = -EINVAL;						\
@@ -884,7 +884,7 @@ static ssize_t show_inquiry(struct file *filep, struct kobject *kobj,
 			    struct bin_attribute *bin_attr,
 			    char *buf, loff_t off, size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct scsi_device *sdev = to_scsi_device(dev);
 
 	if (!sdev->inquiry)
@@ -1181,7 +1181,7 @@ static DEVICE_ATTR(queue_ramp_up_period, S_IRUGO | S_IWUSR,
 static umode_t scsi_sdev_attr_is_visible(struct kobject *kobj,
 					 struct attribute *attr, int i)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct scsi_device *sdev = to_scsi_device(dev);
 
 
@@ -1207,7 +1207,7 @@ static umode_t scsi_sdev_attr_is_visible(struct kobject *kobj,
 static umode_t scsi_sdev_bin_attr_is_visible(struct kobject *kobj,
 					     struct bin_attribute *attr, int i)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct scsi_device *sdev = to_scsi_device(dev);
 
 
-- 
2.14.1